______ is a comprehensive reference in graphical and textual form of all Admiralty Charts and Publications worldwide（link to Admiralty Charts）listed by region．
A.Ocean Passages for the World（NP136）
B.Symbols and Abbreviations used on Admiralty Charts，Chart 5011
C.IALA Maritime Buoyage System（NP735）
D.Catalogue of Admiralty Charts and Publications（NP131）
第1题：
________ are published for correction of Admiralty Charts．
A.Admiralty Sailing Directions
B.Admiralty List of Signals
C.Mariner's Handbook
D.Admiralty Notices to Mariners
第2题：
From 1800 to 1968 Admiralty charts were published with fathoms and feet as the units for depths，and feet as the units for height．Since 1968 Admiralty charts ________ to meters，thus conforming with charts of most other countries．
A.gradually converted
B.have been gradually converted
C.has been gradually converted
D.is gradually converted
第3题：
All of the following statements about control charts are true except:
A . Control charts can be used to establish as well as maintain process control
B . control charts are used to detemine acceptance limits when no limits are stipulated by the product specification; otherwise, one should use the limits dictated by the specification.
C . all data points outside the control chart limits are variations explained by assignable causes.
D . A and B.
E . B and C
第4题：
Generally，______ are used as the track charts on the high sea，______ are used for harbors，inland waters and coastal areas．
A.Mercator charts／Loran charts
B.Admiralty charts／Routeing charts
C.large scale charts／small scale charts
D.small scale charts／large scale charts
第5题：
Navigational charts are ______ frequent changes，the important one of which are promulgated by Admiralty Notices to Mariners．
A.published with
B.combined with
C.in connection with
D.subject to
第6题：
In revised editions of Admiralty charts the ________ are corrected first．
A.smaller scales
B.larger scales
C.smaller scales and larger scales
D.moderate scales
第7题：
Navigational charts are subject to frequent changes，the important ones of which are promulgated by ________ ．
A.Admiralty Notices to Mariners
B.Mariner's Handbook
C.Catalogue
D.Sailing Directions
第8题：
29 All of the following statements about control charts are true except:
A. Control charts can be used to establish as well as maintain process control
B. control charts are used to detemine acceptance limits when no limits are stipulated by the product specification; otherwise, one should use the limits dictated by the specification.
C. all data points outside the control chart limits are variations explained by assignable causes.
D. A and B.
E. B and C
第9题：
To ______ Admiralty Charts 438，latitudes taken from this chart should be increased by about 5 seconds．
A.convert to
B.come to
C.look at
D.agree with
第10题：
The reference datum used in determining the heights of land features on most charts is ______.
A.mean sea level
B.mean high water
C.mean low water
D.half-tide level